|2x-3|-4*|5y-6 | при x＝0.78, y＝ 0.9

Question

|2x-3|-4*|5y-6 | при x＝0.78, y＝ 0.9

Answer 1

|2*0.78|-4*|5*0.9-6|
|1.56|-4*|4.5-6|
1.56-4*|-1.5|
1.56-4*1.5
1.56-6
-4.44

Ответ: -4.44